Kauai
Monsanto Hawaii
Ko Road, Hanapepe Valley
P.O. Box 609
Hanapepe, HI 96716

Maui
Monsanto Hawaii
2111 Piilani Highway
P.O. Box 629
Kihei, HI 96753

Molokai
Monsanto Hawaii (dba Hawaiian Research)
1351 Maunaloa Highway
P.O. Box 40
Kaunakakai, HI 96748

Holden's Seed
Mauna Loa Highway
P.O. Box 803
Kaunakakai, Molokai, Hawaii 96748

Hawaiian Research Ltd.
Mauna Loa Highway
P.O. Box 40
Kaunakakai, Molokai, Hawaii 96748

Oahu
Monsanto Hawaii (dba Hawaiian Research)
62-350 Kawailoa Drive
P.O. Box 209
Haleiwa, HI 96712

Hawaiian Research Ltd.
62-350 Kawailoa Drive
Haleiwa, Oahu, Hawaii 96712